Data Sheet DMM-4026-B-R · Data Sheet DMM-4026-B-R Microphone Specifications Parameters Condition Values Units Directivity Omnidirectional Sensitivity 1 kHz @ 50cm with 94 dB source

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©2019, PUI Audio Inc.

PUI Audio, Inc., 3541 Stop Eight Road, Dayton, OH 45414 Tel: (937) 415-5901 Fax: (937) 415-5925

Data Sheet DMM-4026-B-R

Microphone Specifications

Parameters Condition Values Units

Directivity Omnidirectional

Sensitivity

1 kHz @ 50cm with 94 dB source

0 dB=1V/Pa -26±1 dB

Data Format 1/2 Cycle PDM

Rated Voltage - 1.8 VDC

Operating Voltage Range - 1.5 to 3.6 VDC

Current Draw Full Power Mode 820 ~ 1000 µA

Low Power Mode 400 ~ 450 µA

Signal-to-Noise Ratio (1kHz, 94 dB input, A-weighted)

Full Power Mode 63 dB

Low Power Mode 61 dB

Frequency Range 20~18,000 Hz

Total Harmonic Distortion (typical) 94 dB @ 50cm, 1 kHz acoustic source 0.5% -

Soldering Methods Reflow Solder See page 6

Acoustic Overload Point (AOP)

Full Power Mode SPL @ 50cm with 10% THD @ 1 kHz

123 dB

Low Power Mode SPL @ 50cm with 10% THD @ 1 kHz

120 dB

Environmental Compliances RoHS/Halogen Free

Power Supply Rejection 100 mVpp Square Wave @ 217 Hz, A-weighted -86 dBFS

Weight <0.3 Grams

Load Capacitance 140 pF

Max Voltage on any Pin 4 VDC

Maximum SPL Before Damage (Source 50cm from microphone) 160 dB

Max Mechanical Shock 10,000 Gs

Max Vibration Pre-MIL-STD-883 Method 2007, Test Condition B

Operating Temperature (VDD <3.0V) -40 ~ +100 °C

Operating Temperature (VDD >3.0V) -40 ~ +70 °C

Storage Temperature -40 ~ +125 °C

MSL (Moisture Sensitivity Level)* 1 -

*MSL level dependent on product remaining in sealed packaging until use




Operational Settings

Parameters Condition Values Units

Clock Frequency

Sleep Mode 0 ~ 250 kHz

Low Power Mode 351 ~ 800 kHz

Full Power Mode 1.03 ~ 4.80 MHz

Duty Cycle For fCLK ≤ 2.4 MHz the duty cycle must be

in the range of 40 ~ 60% and for fCLK > 2.4 MHz the duty cycle must be 50% 40 ~ 60 %

Logic Input High - 0.75*VDD ~ VDD + 0.3V

Logic Input Low - -0.3 ~ 0.25*VDD

Logic Output High - 0.75*VDD ~ VDD + 0.3V

Logic Output Low - -0.3 ~ 0.25*VDD

Timing Characteristics




Measurement Method

Measurement Interface Circuit




Typical Frequency Response

Frequency Response Mask (100% Pass/Fail Test for Microphones)




Total Harmonic Distortion + Noise versus SPL Input (with acoustic source at 50cm)

Microphone Output versus SPL Input (with acoustic source at 50cm)




Recommended Soldering Procedure

Reliability Testing Type of Test Test Specifications

Simulated Reflow (Without Solder)

Samples for qualification testing require 3 passes 260±5 ℃ reflow solder profiles. 2 hours of setting time is required between each reflow profile test.

Static Humidity

Precondition at +25℃ for 1 hour. Expose to +85℃ with 85% relative humidity for 1000 hours. Dry at room ambient for 3±1 hour before taking final measurement.

Temperature Shock

Each cycle shall consist of 30 minutes at -40℃, 30 minutes at +125℃ with 5 minutes transition time. Test duration is for 30 cycles, starting from cold to hot temperature.

ESD Sensitivity

Perform ESD sensitivity threshold measurements for each contact according to MIL-STD-883G, Method 3015.7 for Human Body Model. Identify the ESD threshold levels indicating passage of 8000V Human Body Model.

Vibration Test

Vibrate randomly along three perpendicular directions for 30 minutes in each direction, 4 cycles from 20~2000 Hz with a peak acceleration of 20 Gs.

Shock Test Subject samples to half-sine shock pulses (3000±15% Gs for 0.3ms) in each direction, for a total of 18 shocks.

Drop Test Drop samples from 1.5m height onto a steel surface, total 18 times and inspected for mechanical damage.

Operation Life Subject samples to +125℃ for 168 hours under full maximum rated voltage.

Microphone frequency response and sensitivity shall not deviate more than ±3 dB.




Dimensions




Suggested Pickup Tool Location and Land Pattern*

*This land pattern is advisory only and its use or adaptation is entirely voluntary. PUI Audio disclaims all liability of any kind associated with the use, application, or

adaptation of this land pattern.




Packaging




Packaging (continued)




Packaging (continued)




Specifications Revisions

Revision Description Date

- Released from Engineering 10/31/2019

Note:

1. Unless otherwise specified: A. All dimensions are in millimeters. B. Default tolerances are ±0.5mm and angles are ±3°.

2. Specifications subject to change or withdrawal without notice.

Documents

Data Sheet DMM-4026-B-R · Data Sheet DMM-4026-B-R Microphone Specifications Parameters Condition Values Units Directivity Omnidirectional Sensitivity 1 kHz @ 50cm with 94 dB source